Wind turbine yaw bearing pre-load
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United States of America Patent
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Apr 24, 2018
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N/A
app pub date -
May 13, 2015
filing date -
May 13, 2015
priority date (Note) -
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Abstract
A wind turbine yaw assembly has a yaw piston and a yaw bearing pad. A spring resides inside the yaw piston and applies spring pressure to the yaw bearing pad. A threaded yaw piston bushing applies adjustable pressure to the spring. The threaded yaw bushing has a plurality of at least three force adjustment screws distributed symmetrically about the threaded yaw piston bushing. The spring pressure is adjusted by tightening or loosening the plurality of force adjustment screws. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
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